open https://gitlab.synchro.net/main/sbbs/-/issues/728

From my logs

```
Feb 28 03:06:12 bbs synchronet: term Node 2 SSH bbs.endofthelinebbs.com [192.138.210.158]
Feb 28 03:06:12 bbs synchronet: term Node 2 0038 SSH Setting attribute: SESSINFO_ACTIVE
Feb 28 03:06:15 bbs synchronet: term Node 2 0038 SSH dbg 'No algorithm compatible with the remote system's selection was found: 'ssh-ed25519'' (-50) setting session active
Feb 28 03:06:15 bbs synchronet: term Node 2 SSH login: 'nelgin'
Feb 28 03:06:15 bbs synchronet: term Node 2 <nelgin> 0038 SSH Setting attribute: SESSINFO_AUTHRESPONSE
Feb 28 03:06:15 bbs synchronet: term Node 2 <nelgin> 0038 SSH Setting attribute: SESSINFO_ACTIVE
Feb 28 03:06:15 bbs synchronet: term Node 2 <nelgin> 0038 SSH [192.138.210.158] waiting for channel type.
Feb 28 03:06:15 bbs synchronet: term Node 2 <nelgin> SFTP initialized on channel 1
```

I tried 3 times connecting from the bbs server

```
$ node status -vaddr

Synchronet Node Display/Control Utility v3.20

Node 1: User #1 at main menu via ssh (MP) [UQ]
addr=47.186.62.206
Node 2: At login prompt
addr=192.138.210.158
Node 3: At login prompt
addr=192.138.210.158
Node 4: At login prompt
addr=192.138.210.158
Node 5: Waiting for connection
Node 6: Waiting for connection
```

and now I have 3 nodes stuck at login prompt and they have been all night, so not timing out.


netstat is showing just the one connection, which is me on node 1.

```
root@bbs:~# netstat -anp|grep :22
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1533543/sbbs
tcp 0 0 192.138.210.158:22 47.186.62.206:64636 ESTABLISHED 1533543/sbbs
tcp6 0 0 :::22 :::* LISTEN 1533543/sbbs
```
--- SBBSecho 3.20-Linux
* Origin: Vertrauen - [vert/cvs/bbs].synchro.net (1:103/705)

close https://gitlab.synchro.net/main/sbbs/-/issues/728
--- SBBSecho 3.20-Linux
* Origin: Vertrauen - [vert/cvs/bbs].synchro.net (1:103/705)

https://gitlab.synchro.net/main/sbbs/-/issues/728#note_5007

Not fixed.

```
Feb 29 03:49:22 bbs synchronet: term 0030 SSH [47.186.62.206] Connection accepted on 192.138.210.158 port 22 from port 52546
Feb 29 03:49:22 bbs synchronet: term 0030 SSH Cryptlib Session: 14159 created Feb 29 03:49:22 bbs synchronet: term 0030 SSH [47.186.62.206] Hostname: <no name>
Feb 29 03:49:22 bbs synchronet: term 0030 SSH [47.186.62.206] Attaching to Node 1
Feb 29 03:49:22 bbs synchronet: term Node 1 Loading configuration files from /sbbs/ctrl/
Feb 29 03:49:22 bbs synchronet: term Node 1 constructor using socket 30 (settings=8212)
Feb 29 03:49:22 bbs synchronet: term Node 1 temporary file directory: /sbbs/node1/TEMP/
Feb 29 03:49:22 bbs synchronet: term Node 1 passthru listen socket 33 opened Feb 29 03:49:22 bbs synchronet: term Node 1 passthru socket listening on port 37101
Feb 29 03:49:22 bbs synchronet: term Node 1 passthru connect socket 34 opened Feb 29 03:49:22 bbs synchronet: term Node 1 input thread started
Feb 29 03:49:22 bbs synchronet: term Node 1 output thread started
Feb 29 03:49:22 bbs synchronet: term Node 1 outbuf highwater mark tuned to 1436 based on MSS
Feb 29 03:49:22 bbs synchronet: term Node 1 thread started
Feb 29 03:49:22 bbs synchronet: term Node 1 JavaScript: Creating node runtime: 134217728 bytes
Feb 29 03:49:22 bbs synchronet: term Node 1 03:49 Thu Feb 29 2024 Node 1
Feb 29 03:49:22 bbs synchronet: term Node 1 SSH <no name> [47.186.62.206]
Feb 29 03:49:22 bbs synchronet: term Node 1 0030 SSH Setting attribute: SESSINFO_ACTIVE
Feb 29 03:49:24 bbs synchronet: term Node 1 0030 SSH dbg 'No algorithm compatible with the remote system's selection was found: 'ssh-ed25519'' (-50) setting session active
Feb 29 03:49:24 bbs synchronet: term Node 1 SSH login: 'crashtestdummy'
Feb 29 03:49:24 bbs synchronet: term Node 1 <Crashtestdummy> 0030 SSH Setting attribute: SESSINFO_AUTHRESPONSE
Feb 29 03:49:24 bbs synchronet: term Node 1 <Crashtestdummy> 0030 SSH Setting attribute: SESSINFO_ACTIVE
Feb 29 03:49:24 bbs synchronet: term Node 1 <Crashtestdummy> 0030 SSH [47.186.62.206] waiting for channel type.
Feb 29 03:49:24 bbs synchronet: term Node 1 <Crashtestdummy> SFTP initialized on channel 1
```

sftp session hangs. When I CTRL C it exits but sbbs still has the session hanging.

```
bbs@bbs:~$ node status -vaddr

Synchronet Node Display/Control Utility v3.20

Node 1: At login prompt
addr=47.186.62.206
Node 2: nelgin viewing node status via ssh (P) [Q]
addr=47.186.62.206
Node 3: Waiting for connection
```

```
bbs@bbs:~$ sudo netstat -anp|grep :22
[sudo] password for bbs:
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1583175/sbbs
tcp 0 0 192.138.210.158:22 47.186.62.206:64463 ESTABLISHED 1583175/sbbs
tcp 85 0 192.138.210.158:22 47.186.62.206:52546 CLOSE_WAIT 1583175/sbbs
tcp6 0 0 :::22 :::* LISTEN 1583175/sbbs
```

Fair enough, in CLOSE_WAIT...15 minutes later...still close wait.
--- SBBSecho 3.20-Linux
* Origin: Vertrauen - [vert/cvs/bbs].synchro.net (1:103/705)

https://gitlab.synchro.net/main/sbbs/-/issues/728#note_5009

I'm far beyond that commit.

bbs@bbs:~/sbbs-git$ git show
commit 5a45e5c5d91d6b90f734d88f17cf5c09faad26c9 (HEAD -> master, origin/master, origin/HEAD)
Merge: 217700a69 15bbed2b0
Author: Rob Swindell <rob@synchro.net>
Date: Thu Feb 29 09:33:03 2024 +0000
--- SBBSecho 3.20-Linux
* Origin: Vertrauen - [vert/cvs/bbs].synchro.net (1:103/705)

https://gitlab.synchro.net/main/sbbs/-/issues/728#note_5013

Fixed.
--- SBBSecho 3.20-Linux
* Origin: Vertrauen - [vert/cvs/bbs].synchro.net (1:103/705)